Pressure-air device.



Patented May 27, 1913.

2 SHEETS-SHEET 1.

C. SANDOZ-MORITZ.

PRESSURE AIRhDEVIGE.

APPLIOATION FILED 00T. 3o, 1911.v

C. SANDOZ-MORITZ.

PRESSURE AIE DEVICE.

APPLIUATION FILEDOOT. 30, 1911. 1,062,608.

Patented May 27, 1913.

2 SHEETS-SHEET 2,

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CDLUMEIA PLANOGRAPH C0.,w.\SmNG1'oN, D. c.

CHARLES SANDOZ-MORITZ, OF TAVANNES, SVJITZERLAND.

PRESSURE-.AIR DEVICE.

Specification of Letters Patent.

Application filed October 30, 1911.

Patented May 27, 1913. serial No. 657,596.

To all wh-0m t may concern.'

Be it known that I, CHARLES SANDoz- MORITZ, a citizen of the Republic ofSwitzerland, and residing at Tavannes, Switzerland, have inventedcertain new and useful Improvements in Pressure-Air Devices, of whichthe following is a specification. y

The present invention has reference to improvements, in apparatus forassembling work parts or for temporarily inserting them in removableholders by means of pressure air.

It is now customary in various arts, especially in clockandwatch-making, to suck-in parts, such as pins, studs, screws, rivets,hands, and the like, for cleaning and other purposes, into perforationsprovided in plates or disks by means of suction-air in speciallyconstructed, fan-actuated suckers with shaking action. It has beenfound, however, that dirt, grit, ilings, chips and like impurities,detaching themselves from the shapen parts, are entrained by the suctioncurrent and are then apt to lodge in the fan and seriously interferewith its operation; furthermore, in devices of this type, the excessparts must be carefully and laboriously taken out of the sucker-bowlafter each operation, before the perforated plate with the sucked-inparts can be removed.

The object of the present invention is to do away with these drawbacksby using pressure-air for forcing-in the parts, instead of drawing themin by suction-air, as heretofore, and to alternately increase anddecrease the compression of the air-blast for the purpose of acting onthe parts to be inserted more forcibly on the down-stroke of thecontaining bowl.

In order to make this invention more readily understood, I will describeit with reference to the accompanying drawings, which represent oneembodiment of my invention.

Figure l represents a vertical section through the machine. Fig. 2 showsa side elevation of the machine, partly in section.

In the lower part of the tubular machine frame a is provided the bloweror fan-housing b, in which rotates the fan c whose shaft d is drivenfrom the pulley e. The rotation of the fan takes place in the directionof travel of the hands of a clock, and the air blast passes through theapparatus in the arrow-indicated direction, through the air canal f, ginto the head or bowl h, into which the parts to be assembled areplaced, and finally out of the bowl. A tube i airtightlv slides withinthe vertical part of the canal ug and communicates above with a curvedconduit @c which, in turn, opens into the bowl /z at 0. To the memberzare fulcrumed the upper ends of rods n, n secured to eccentrics 7s, 70,which latter are driven from the shaft m with driving pulley Z. Upon theshaft revolving, the bowl it will be vreciprocated 1n an up and downdirection. Below the orifice 0 is provided the false bottom Q9 uponwhich the parts to be treated are placed. This plate p is provided witha number of perforations or air passages to receive therein the workparts, such as screws, pins. studs, rivets, and the like. After the perlforations are all filled, which requires but a few seconds, the plate isremoved to a buffer or polisher or to other apparatus for furthertreatment, and in the meantime a fresh plate is introduced, so that thework suffers no interruption.

The bowl /z is airtightly closed by the cover Q of any suitableconstruction and operation. A preferred form of cover, which operatesquickly and reliably, is shown in the drawings. To the center of thecover surface is secured the double-armed lock-bar r with capability ofhorizontal rotation. To the bowl are secured at opposite points twohook-shaped brackets r1. F or closing down the cover the bar 1 is swungaround its central pivot until it free ends are caught below the hookparts of the brackets r1. For the purpose of raising or lowering thecover there is secured to it one end of the swinglever t, whose 'otherend is pivotally secured to the bowl. The bottom a slopes toward thefront of the bowl, as shown in F ig. 2, and just above the lowermostpoint there is provided at u1 a discharge opening, from which issues thepressure-air and from which are delivered the excess pieces after eachoperation into an open tray o.

The operation of the described mechanism is as follows: The perforatedplate or false bottom p is placed into the bowl 7L, the parts to beinserted are placed on top of the plate, and the cover g is closed down.Upon the fan being started, pressure-air is sucked in through port f andforced through the canal g, z', w and the orice o into the bowl, passesthrough the perforated false bottom, through the lower part. of the bowland finally out at u1. To the bowl, in the meantime, is imparted avibratory up and down motion, with the result that the loose parts inthe bowl are thoroughly shaken and alternately thrown upwardly and thenagain pressed home into the respective perforations of the work plate.

Each sudden descent of the bowl, obviously, will cause the inclosedcolumn of pressure air to become momentarily still further compressed,and these quickly recurrino` eX- tra-compressions, acting like hammerbIows, greatly aid in forcing the work parts into the perforations inthe plate. At the end of each operation, the false bottom is tilted,when the excess pieces will tall onto, and slide down, the slantingbottom u of the bowl, and are finally discharged into the tray '0.

What I claim is 1. In a device of the character described, thecombination with the work receiving bowl and the blower, of eXtensiblemeans, airtightly connecting said bowl and said blower, and means forimparting to said work receiver a reciprocatory up and down movement.

2. In a device of the character described, in combination, a blower;driving means therefor; a work receiver, comprising a bowl, anairtightly closable cover, a removable false bottom having perforations,and a sloping bottom, said bowl having an air inlet above said falsebottom and a discharge opening at the lowermost part; a telescoping airconduit7 airtightly connecting said bowl and said blower; and means forimparting to said work receiver and to part of the said telescoping airconduit areciprocatory up and down movement.

In testimony whereof I aiiiX my signature in presence of two witnesses.

CHARLES SANDOZ-MORITZ.`

Witnesses ADoLr LooHER, CARL LANGJAHR.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents. Washington, D. C.

